DOUBLE THE PLAY TIME OF THE STANDARD BATTERY - Keep the party going for an amazing 18 additional hours! Your guests will pass out before your speaker does.
EASY TO CHARGE - The 12-cell Lithium-Ion battery charges while in the speaker, no need for extra chargers.
SIMPLE TO SWAP - Easy access to the battery panel makes swapping out batteries quick and simple.
COMPATIBLE WITH ALL EXOS-9 SPEAKERS - Works with both the 9001 and 9002 models.